196788660 has 24 divisors (see below), whose sum is σ = 551008416. Its totient is φ = 52476960.

The previous prime is 196788611. The next prime is 196788661. The reversal of 196788660 is 66887691.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196788661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1639846 + ... + 1639965.

It is an arithmetic number, because the mean of its divisors is an integer number (22958684).

Almost surely, 2^196788660 is an apocalyptic number.

196788660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196788660 is an abundant number, since it is smaller than the sum of its proper divisors (354219756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

196788660 is a wasteful number, since it uses less digits than its factorization.

196788660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279823 (or 3279821 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 196788660 is about 14028.1381515866. The cubic root of 196788660 is about 581.6566390264.

The spelling of 196788660 in words is "one hundred ninety-six million, seven hundred eighty-eight thousand, six hundred sixty".